Refuse collecting container



March '18, 1947. H, LlNDE I REFUSE COLLECTING CONTAINER Filed March 16, 1945 3 Sheets-Shegt 1 March 18, 1947.

H. LINDE REFUSE COLLECTING couumnfi Filed March 16, 1945 s sheets-shed 2 March 18; 1947. HUNDE 7 2,417,696

REFUSE COLLECTINQG CONTAINER Filed Marh 16, 1945 SSheets-Sheet 3 1 e i l Patented Mar. 18, 1947 2,417,696 REFUSE COLLECTING CONTAINER Hilding Linde, Kahnar, Sweden Application March 16, 1945, Serial No. 583,068 In Sweden March 4, 1944 7 Claims.

The invention relates to a refuse collecting container which may be mounted on a vehicle and which preferably is provided with means for dustless discharge of the refuse bins or cans into the container.

One object of the invention is to obtain a device -for emptying the bins essentially by mechanical means and with a minimum of hand work.

Another object of the invention is to permit the coupling of the refuse bin to a hoisting and tilting device without lifting the bin from the ground or a special basis supporting the bin from below.

The invention consists in the construction and novel combination and arrangement of parts hereinafter described, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

One embodiment of the invention is shown in the accompanying drawings in which:

Fig. 1 is a side view of the rear part of a refuse collecting vehicle with an emptying device and a refuse bin ready for discharge.

Fig. 2 is a side view of the same device in another operating position with the bin in an uncompletely tilted position.

Fig. Bis a front view of the carrier of the emptying device.

Fig. 4 is a side view and Fig. a top view of the same carrier.

The device for emptying the bins into the receiver is arranged at the rear end of a collecting vehicle I, which in its lower part has a feed screw 2 by which the refuse received through an emptying hood is compressed into the collecting container of the vehicle. The emptying hood comprises a plate 4 hinged at its lower edge between two side walls 3 and having a discharge opening corresponding to the top of the bin. The plate 4 has hooks 5 and B for coupling the bin together with the plate 4. This plate 4 is along its upper edge hingedly connected to a mov-- able cover plate I which at its inner end is hinged to the upper ends of two arms 9, the lower ends of which are joumalled in the side walls of the emptying hood and serve to guide the inner edge of the movable cover plate 'I along the fixed cover plate 8 of the emptying hood. A lid l0 fixed to the movable cover plate projects downwards and serves to close the opening of the plate 4 from the inside. Two essentially vertical and U-formed guide rails II are secured to the rear of the vehicle below the emptying hood with their open sides facing each other. The wheels of a carrier, shown more in detail in Figs. 3-5, are guided in these rails. The carrier comprises two side portions l2 and two transverse portions l3 and I4 forming a frame." The side portions l2 are bent outwardly below the lower transverse portion 14 and have their lower ends connected to an arched sustaining bar i5 of angle iron. Each of the side portions I2 is on its outside provided with two wheels having pref-. erably rubber coated running surfaces and forming together an upper pair of wheels l6 and a lower pair of wheels ll. At equal distances from the side portions 12 the upper transverse portion l3 has upwardly open coupling hooks I8 and at somewhat lesser distances from the side portions two upwardly and outwardly diverging guiding plates IS. The notches of the coupling hooks are preferably disposed coaxially with the upper pair of wheels IS. The outwardly bent ends 20 of the sustaining bar 15 are provided with eyes 2| for fastening the ends of hoisting lines 22 connecting the carrier with the hoisting mechanism.

As shown in Fig. 1, the hoisting lines 22 run from the eyes of the carrier upwards over guide rollers 23 and further downwards to line drums 24 disposed on each side of the collecting container and adapted to be rotated in one direction or the other by means of a gear and. coupling device 25 operated by a hand lever 26. The line drums and the feed screw 2 are preferably driven from the engine of the vehicle by a transmission gear not shown. The rollers 23 are journalled on the ends of two arms 21 mounted on a common shaft and are drawn upwards by a spring 23 acting on an arm 29 secured to said shaft which is preferably on the same side of the vehicle as the lever 26 provided with a lever 35 arranged to be easily reached by the person in charge, of the device. By the operating of this lever the bin can also be shaken in the tilted position in the emptying hood.

The guide rails H are fastened to the rear of the collecting vehicle I by means of supports 3|. Their upper ends are bent towards the vehicle about with very little radius. In direct continuation of these bends of the guide rails are provided bent guide portions 32 fastened to the plate 4 at the same level as the coupling hooks 5. These are arranged to be introduced between the coupling hooks l8 and the guide plates 19 on the carrier in its upper position. At a distance from the bent upper ends of the guide rails which distance corresponds to the space between the upper and the lower pair of wheels the outer flanges of both rails are cut out to form openings 33 permitting the lower pair of wheels to swing outwards and upwards from the rails when the 3 upper pair of wheels reaches the upper bent ends of the rails. The parts of the inner flanges of the rails facing the openings 33 are also cut away and replaced by appropriate buliers, preferably rubber plates 34. A guiding abutment 35 having an upper arched guiding edge projects from the lower edge of the openings 33. As clearly shown in Fig. l the refuse bin is around its mouth provided with a reinforcing-ring o f angle iron, the outstanding flange 33 of which serves as a coupling member for the connectionof the bin with the upper coupling hook 6 of the emptying hood. Opposite to the hinge38 of the bin lid 31 the side wall of the bin is provided with a suspending clamp formed of two projecting flanges 4B and a. bolt 4| between them.

In order to increase the strength of the clamp the bolt may be bent inwards at the middle of its length and there fastened to the side wall of the bin by welding. Directly above the suspending clamp the bin lid is provided with a handle 42, which cooperates with a projection 43 on the lid H) of the emptying hood when the bin is tilted. The hoisting device has a preferably automatic uncoupling mechanism (not shown), which disconnects the line drum from the driving mechanism when the carrier reaches its highest and its lowest position.

The device as described works as follows.

In the lowest position of the carrier the coupling hooks I8 are on the same level with or somewhat higher than the clamp 4| of the bin. For coupling the bin and the carrier together the last one is lowered preferably by pressing down the sustaining bar IS with the foot. The carrier is thereby lowered by stretching the spring 28 e. g. into the position shown by mixed. lines in Fig. 1. Whenthe coupling hooks thus have been lowered below the suspending clamp 4|, the bin is inclined towards the vehicle to permit the coupling hooks I8 to engage the clamp 4| when the carrier is released and moves upwards under the action of the spring 28. By cooperation between the side flanges 40 of the clamp and the guide plates I9 the clamp is exactly positioned relatively to the carrier. To illustrate this the coupling position of the clamp is indicated in mixed lines in Fig. 5. By shifting the lever 26 of the driving mechanism the carrier is thereafter hoisted along the guide rails and the bin is lifted by its clamp, the lower part of the bin resting against the arched portion of the sustaining bar I5. The impact of the bin against the bar I5 is damped by a rubber block orplate 44 disposed preferably in the middle of the arched portion of the bar (Figs. 3

and 5). When the upper pair of wheels of the carrier reaches the upper bent ends of the rails they are guided inwards and prevented from further upward displacement. Simultaneously the lower pair of wheels has reached the level of the openings 33. The pulling strain exerted by the hoisting line causes'the lower pair of wheels to swing outwards and upwards to the approximately horizontal intermediate position shown in Fig. 2, in which the bin is coupled together with the emptying hood. By the tilting motion of the carrier the upper pair of wheels is guided inwards into the guide portions 32 and through these inwards and downwards, until the parts of the suspending clamp 4| lying between the coupling hooks I8 and the guide plates l9 on the carrier engage the coupling hooks 5 on the plate 4 of the emptying hood. Simultaneously the handle 42 on the bin lid engages the projection 43 in the lid IU of the emptying hood.

long as the lid closes the opening of the plate 4'. The continued pulling strain in the lines causes the carrier and the bin to be tilted together with the plate 4 around its lower edge, while the lid is is swung inwards and causes the lid 3'! of ithe rbin to swing-upwards and rleave free 1 passage. for; the-l'refuseto be discharged through the emptying hood. As soon as the lid I0 is swung inwards from the plate 4 the coupling hook 6 falls down and catches behind the flange 36 of the bin thus couplin this together with the plate 4. When the device has reached its uppermost position in which the bin is fully tilted, the hoisting mechanism is automatically stopped. In order to shake away such rests of refuse, that may adhere to the inner walls of the bin, the bin can be subjected to repeated shocks by moving the hand lever 36 to and from. Thereafter the hoisting mechanism is operated for lowering the bin. In order to facilitate the beginning of the return motion the plate 4 may be acted upon by a spring not shown in the drawings. When the bin has reached the intermediate position shown in Fig. 2, the upper coupling hook 6 is lifted oil by cooperation with the lid H], and the lowering of the bin and the carrier is free to continue. Shortly afterwards the side portions l2 of the carrier are pressed against an angle iron 45 fixed transversely on the guide rails so that theupper pair of wheels of the carrier is lifted off the coupling hooks 5 when the carrier turns downwards around the edge of the angle iron 45. The guiding abutment 35 prevents the upper pair of wheels [6 from gliding down in the guide rails before the lower pair of wheels I! has re-entered the guide rails through the openings 33. In order to prevent a hard impact of the lower pair of wheels against the inner flanges of the guide rails, these are provided with the buffer means 34 facin the openings 33. When the carrier thereafter has reached its lowest driving position and the bin is standing on the ground, the carrier is lowered with the foot just enough to disengage the suspending clamp 4| from the coupling hooks l8 of the carrier, whereafter the empty bin can be taken away. The whole hoisting and emptying process is by thi device effected without other manual handling of the bin than a light inclining of the bin towards the vehicle, respectively a corresponding displacement outwards of the emptied bin. The bin needs not be lifted upon ahoisting platform on the carrier and is by the described simple suspending device automatically placed in correct relation to the carrier and the coupling means of the emptying hood respectively.

'By the resilient suspension of the carrier not onlya very simple and easy coupling of the bin is attained, but even bins of different height may be. used with the same emptying device.

The present invention is not considered to be limited to the embodiment described and shown. Other means for suspending the bin on the carnor may be used. e. g. the handles of the bin. Other emptying devices and means for coupling the bin to the emptyingdevice may also be used in connection with the coupling of the bin to the carrier according to the invention, and hooks 5. on the emptying hood for the coupling of the bin may also be unnecessary. The device according to the invention may be used in connection with other collecting receivers than vehicles. e. g. with stationary installations for the discharging of materials transported in bins or cans.

I claim:

1. In a refuse collecting container having a device for emptying dust bins thereinto, said device comprising an elevator having a carrier and guide rails in which the carrier runs and having upwardly open hooks, said guide rails extending downwards sufiicient to allow said open hooks to be introduced from below into corresponding coupling members on a dust bin on the ground, and means for hoisting up the carrier into a tilting position and for tilting the carrier together with the bin.

2. In a refuse collecting container having a device for emptying dust bins thereinto, said device comprising an elevator having a carrier and guide rails in which the carrier runs and having upwardly open hooks, said guide rails extending downwards sufiicient to allow said open hooks to be introduced from below into corresponding coupling members on a dust bin resting on the ground, and projecting guiding surfaces on the carrier mounted on each side of the hooks and adapted to guide the coupling members of the bin into a correct lateral position above said hooks.

3. In a refuse collecting container having a device for emptying dust bins thereinto, said device comprising an elevator having a carrier and guide rails in which the carrier runs and having upwardly open hooks for engaging from below corresponding coupling members on a dust bin resting on the ground, a hoisting mechanism, and a resilient connection between said mechanism and the carrier permitting said carrier to be resiliently lowered in the guide rails.

4. In a refuse collecting container having a device for emptying dust bins thereinto, said device comprising an elevator having a carrier and guide rails in which the carrier runs and having up.-

- wardly open hooks adapted to engage from below corresponding coupling members on a dust bin resting on the ground, and a hoisting mechanism comprising a hoisting line connecting an actuating mechanism to the carrier and passing over a guide wheel journalled on a spring loaded rocking lever.

5. In a refuse collecting container having a device for emptying dust bins thereinto, said device 6 2 comprising an elevator having a carrier provided with coupling members for connecting said carrier with a dust bin supported from below and a, hoisting mechanism having a guide wheel for ahoisting line, said guide wheel being journalled. on a spring-loaded rocking lever, and means for, manually operating said lever from a place near, said carrier. 1 6. In a refuse collecting container having a de-; vice for emptying dust bins thereinto, said device; comprising an elevator with a carrier havingg coupling members for connecting said carrier; with a dust bin and two pairs of Wheels running in substantially vertical, U-shaped rails, said rails having their upper ends curved to form a limit stop for the upper pair of wheels and at a distance from said ends, corresponding to the distance between the pairs of wheels, an opening permitting the lower wheels to swing out when the carrier is tilted, and said limit stops beingv so located in relation to a dustless empty ng hood that the bin is automatically coupled to said hood on tilting.

7. In a refuse collecting container according to claim 6, characterized in that a guiding abut-1 ment projects from the lower edge of said open-- ing to secure the re-entrance of the lower wheels of the carrier into the guide rails.

HILDING LINDE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,292,670 Wesley J an. 28, 1919 1,378,014 Eger May 17, 1921 1,492,675 Clark et a1. May 6, 1924 1,953,579 Zeuthen Apr. 3, 1934 1 2,128,650 Knoerzer Aug. 30, 1938 1 2,307,692 Linde Jan. 5, 1943 FOREIGN PATENTS Number Country Date 279,715 British Nov. 3, 1927 422,235 British Jan. 8, 1935 514,296 British Nov. 3, 1939 543.752 German Jan. 21, 1932 568,417 German Jan. 5, 1933 

